What is the Trademark Clearinghouse (TMCH)? July 25, 2025 15:56 Updated TMCH is a global repository for validated trademarks. It allows trademark owners to register their marks to protect them during the Sunrise Period and receive notifications about potential infringements. Related articles What is the Landrush Period? What happens after the Sunrise Period ends? What is required to register a domain during the Sunrise Period? Can I register any domain name during the Sunrise Period? If I have a trademark for a domain name, do I have priority?